一个JDBC实现批量删除的例子

鏁版嵁搴擄細SQLServer2005

鏈嶅姟鍣細Tomcat6.0

寮€鍙戝伐鍏凤細MyEclipse6.0

閲囩敤妗嗘灦锛歋truts1.2

璐村嚭瀹屾暣浠ｇ爜 锛?

鍒涘缓SQL鑴氭湰锛?CREATE TABLE [dbo].[batch](

聽[id] [int] IDENTITY(1,1) NOT NULL,

聽[name] [varchar](50) NULL,

聽[password] [varchar](50) NULL,

聽CONSTRAINT [PK_batch] PRIMARY KEY CLUSTERED

(

聽[id] ASC

)WITH (PAD_INDEX聽 = OFF, STATISTICS_NORECOMPUTE聽 = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS聽 = ON, ALLOW_PAGE_LOCKS聽 = ON) ON [PRIMARY]

) ON [PRIMARY]

GO

杩炴帴鏁版嵁搴撶被锛?public class DBConnection {

聽private static DBConnection dbc = null;

聽public static Connection getDBConnection() throws Exception {

聽聽if (dbc == null) {

聽聽聽dbc = new DBConnection();

聽聽}

聽聽return dbc._getConnection();

聽}

聽public Connection _getConnection() throws Exception {

聽聽Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");

聽聽return DriverManager.getConnection(

聽聽聽聽"jdbc:sqlserver://localhost:1433;DatabaseName=dbtest", "sa",

聽聽聽聽"sqlserver2005");

聽}

}

閲囩敤DAO宸ュ巶妯″紡锛?

PO绫伙細

public class Batch {

聽private int id;

聽private String name;

聽private String password;

聽public int getId() {

聽聽return id;

聽}

聽public void setId(int id) {

聽聽this.id = id;

聽}

聽public String getName() {

聽聽return name;

聽}

聽public void setName(String name) {

聽聽this.name = name;

聽}

聽public String getPassword() {

聽聽return password;

聽}

聽public void setPassword(String password) {

聽聽this.password = password;

聽}

}

DAO鎺ュ彛锛?

public interface BatchDAO {

聽public List<Batch> queryAll();

聽public void deleteSelect(int[] str);

}

瀹炵幇鎺ュ彛绫伙細

public class BatchDAOImpl implements BatchDAO {

聽Connection con = null;

聽PreparedStatement pst = null;

聽ResultSet rst = null;

聽public void deleteSelect(int[] str) {

聽聽String sql = "delete from batch where id in(";

聽聽if(str.length==1){

聽聽聽sql=sql+str[0]+")";}else{

聽聽聽聽for(int i=0;i<str.length;i++){

聽聽聽聽聽if(i==0){

聽聽聽聽聽聽sql=sql+str[0];

聽聽聽聽聽}

聽聽聽聽聽else if(i==str.length-1){

聽聽聽聽聽聽sql=sql+","+str[i]+")";

聽聽聽聽聽}else{

聽聽聽聽聽聽sql=sql+","+str[i];

聽聽聽聽聽}

聽聽聽聽}

聽聽聽}

聽聽try {

聽聽聽con = DBConnection.getDBConnection();

聽聽聽pst = con.prepareStatement(sql);

聽聽聽pst.execute();

聽聽} catch (Exception e) {

聽聽聽e.printStackTrace();

聽聽} finally {

聽聽聽try {

聽聽聽聽if (pst != null)

聽聽聽聽聽pst.close();

聽聽聽聽if (con != null)

聽聽聽聽聽con.close();

聽聽聽} catch (Exception e) {

聽聽聽聽e.printStackTrace();

聽聽聽}

聽聽}

聽}

聽public List<Batch> queryAll() {

聽聽List<Batch> list = new ArrayList<Batch>();

聽聽String sql = "select * from batch";

聽聽try {

聽聽聽con = DBConnection.getDBConnection();

聽聽聽pst = con.prepareStatement(sql);

聽聽聽rst = pst.executeQuery();

聽聽聽while (rst.next()) {

聽聽聽聽Batch b = new Batch();

聽聽聽聽b.setId(rst.getInt("id"));

聽聽聽聽b.setName(rst.getString("name"));

聽聽聽聽b.setPassword(rst.getString("password"));

聽聽聽聽list.add(b);

聽聽聽}

聽聽} catch (Exception e) {

聽聽聽e.printStackTrace();

聽聽} finally {

聽聽聽try {

聽聽聽聽if (rst != null)

聽聽聽聽聽rst.close();

聽聽聽聽if (pst != null)

聽聽聽聽聽pst.close();

聽聽聽聽if (con != null)

聽聽聽聽聽con.close();

聽聽聽} catch (SQLException e) {

聽聽聽聽e.printStackTrace();

聽聽聽}

聽聽}

聽聽return list;

聽}

}

宸ュ巶绫伙細

public class DAOFactory {

聽public static BatchDAO getBatchDAOImplInstance() {

聽聽return new BatchDAOImpl();

聽}

}

Action:缁ф壙DispatchAction

public class BatchAction extends DispatchAction {

聽

聽

聽public ActionForward queryAll(ActionMapping mapping, ActionForm form,

聽聽聽HttpServletRequest request, HttpServletResponse response) {

聽聽List<Batch> list = DAOFactory.getBatchDAOImplInstance().queryAll();

聽聽request.setAttribute("list", list);

聽聽return mapping.findForward("display");

聽}

聽public ActionForward deleteSelect(ActionMapping mapping, ActionForm form,

聽聽聽HttpServletRequest request, HttpServletResponse response) {

聽聽String[] id = request.getParameterValues("name");

聽聽int[] i = new int[id.length];

聽聽for (int j = 0; j < id.length; j++) {

聽聽聽i[j] = Integer.parseInt(id[j]);

聽聽}

聽聽DAOFactory.getBatchDAOImplInstance().deleteSelect(i);

聽聽return mapping.findForward("delete");

聽}

}

struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>

聽 <data-sources />

聽 <form-beans />

聽 <global-exceptions />

聽 <global-forwards />

聽 <action-mappings >

聽聽聽 <action

聽聽聽聽聽 input="/index.jsp"

聽聽聽聽聽 parameter="batch"

聽聽聽聽聽 path="/batch"

聽聽聽聽聽 type="com.batch.delete.struts.action.BatchAction"

聽聽聽聽聽 validate="false">

聽聽聽聽聽 <forward name="display" path="/batchList.jsp" />

聽聽聽聽聽 <forward name="delete" path="/batchList.jsp" />

聽聽聽 </action>

聽 </action-mappings>

聽 <message-resources parameter="com.batch.delete.struts.ApplicationResources" />

</struts-config>

浠ヤ笅鏄〉闈㈠唴瀹癸細

<%@ page contentType="text/html;charset=GBK"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>

<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>

<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

聽<head>

聽聽<title>batch_delete</title>

聽</head>

聽<script type="text/javascript" src="js/check.js"></script>

聽<body>

聽聽<center>

聽聽聽<h2>

聽聽聽聽Batch Delete Database Data Sample Display

聽聽聽</h2>

聽聽聽<hr>

聽聽聽<form action="batch.do?batch=deleteSelect" name="myForm"

聽聽聽聽method="post">

聽聽聽聽<table style="border-collapse: collapse"

聽聽聽聽聽bordercolor="#1E90FF" height="60" cellpadding="3">

聽聽聽聽聽<tr style="background: #87CEFA;">

聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽&nbsp;

聽聽聽聽聽聽</td>

聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽ID

聽聽聽聽聽聽</td>

聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽Name

聽聽聽聽聽聽</td>

聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽Password

聽聽聽聽聽聽</td>

聽聽聽聽聽</tr>

聽聽聽聽聽<logic:iterate id="li" name="list">

聽聽聽聽聽聽<tr>

聽聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽聽<input type="checkbox" name="name" value="${li.id }">

聽聽聽聽聽聽聽</td>

聽聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽聽${li.id }

聽聽聽聽聽聽聽</td>

聽聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽聽${li.name }

聽聽聽聽聽聽聽</td>

聽聽聽聽聽聽聽<td>

聽聽聽聽聽聽聽聽${li.password }

聽聽聽聽聽聽聽</td>

聽聽聽聽聽聽</tr>

聽聽聽聽聽</logic:iterate>

聽聽聽聽聽<tr>

聽聽聽聽聽聽<td colspan="4">

聽聽聽聽聽聽聽<input type="button" value="SelectAll" 慰nclick="checkAll()">

聽聽聽聽聽聽聽&nbsp;

聽聽聽聽聽聽聽<input type="submit" value="DeleteSelect">

聽聽聽聽聽聽聽&nbsp;

聽聽聽聽聽聽聽<input type="reset" value="ResetSelect">

聽聽聽聽聽聽</td>

聽聽聽聽聽</tr>

聽聽聽聽</table>

聽聽聽</form>

聽聽</center>

聽</body>

</html>

JSP椤甸潰寮曞叆涓€涓猨s鏂囦欢锛?

function checkAll() {

聽for (var i = 0; i < myForm.name.length; i++) {

聽聽myForm.name[i].checked=true;

聽}

}